malloc(9) M_WAITOK broken

Brian Fundakowski Feldman green at freebsd.org
Sat Jul 3 11:22:40 PDT 2004


On Sat, Jul 03, 2004 at 12:18:59PM +0200, Bernd Walter wrote:
> On Sat, Jul 03, 2004 at 09:55:56AM +0200, Bernd Walter wrote:
> > I get daily panics in vinum because malloc M_WAITOK returns NULL.
> > Source is from 1st Jul running on alpha.
> 
> Since vm_uma_core.c Rev 1.94 uma_zalloc_arg allways ignores M_WAITOK
> in the non WITNESS case because badness is initialized as 1.
> My understanding is that M_WAITOK shouldn't be ignored in any case
> to avoid returning NULL - at least malloc(9) is documented to never
> return NULL with M_WAITOK.

Please try an updated src/sys/vm/uma_core.c now (the rest of the build
is broken, so just try updating the last revision of that file.)

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\


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